<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>购物车</title>
    <%--静态抽取公共头--%>
    <%@include file="/pages/common/head.jsp" %>
    <script type="text/javascript">
        $(function () {
            $("a.deleteItem").click(function () {
                return confirm("你确定删除" + $(this).parent().parent().find("td:first").text() + "吗？");
            });
            $("a.clear").click(function () {
                return confirm("你确定清空购物车吗？");
            });
            //使用onchange事件代替blur事件
            $(".updateCount").change(function () {
                let name = $(this).parent().parent().find("td:first").text();
                let value = this.value;
                let id = $(this).attr("bookId");


                if (confirm("你确定将"+name+"的数量改变为"+value+"吗？")){

                    location.href="http://localhost:8080/book/cartServlet?action=updateCount&id="+id+"&count="+value;
                }else {
                    this.value = this.defaultValue;
                }
            });
        });
    </script>
</head>
<body>
<%--${sessionScope}--%>
<div id="header">
    <img class="logo_img" alt="" src="static/img/logo.gif">
    <span class="wel_word">购物车</span>
    <%@include file="/pages/common/login_success_menu.jsp" %>
</div>

<div id="main">

    <table>
        <tr>
            <td>商品名称</td>
            <td>数量</td>
            <td>单价</td>
            <td>金额</td>
            <td>操作</td>
        </tr>
        <c:if test="${ not empty sessionScope.cart.items}">
            <c:forEach items="${sessionScope.cart.items}" var="item">
                <tr>
                    <td>${item.value.name}</td>
                    <td><input class="updateCount"
                              bookId ="${item.value.id}" style="width: 80px" type="text" value="${item.value.count}"></td>
                    <td>${item.value.price}</td>
                    <td>${item.value.totalPrice}</td>
                    <td><a class="deleteItem" href="cartServlet?action=deleteItem&id=${item.value.id}">删除</a></td>
                </tr>
            </c:forEach>
        </c:if>
        <%--session为空的情况下--%>
        <c:if test="${ empty sessionScope.cart.items}">
            <tr>
                <td colspan="5"><a href="index.jsp"> 亲，你还没有添加商品,去主页看看吧</a></td>
            </tr>
        </c:if>
    </table>
    <%--session不为空的情况下--%>
    <c:if test="${ not empty sessionScope.cart.items}">
        <div class="cart_info">
            <span class="cart_span">购物车中共有<span class="b_count">${sessionScope.cart.totalCount}</span>件商品</span>
            <span class="cart_span">总金额<span class="b_price">${sessionScope.cart.totalPrice}</span>元</span>
            <span class="cart_span"><a class="clear" href="cartServlet?action=clear">清空购物车</a></span>
            <span class="cart_span"><a href="orderServlet?action=createOrder">去结账</a></span>
        </div>
    </c:if>
</div>

<%--抽取页脚--%>
<%@include file="/pages/common/footer.jsp" %>
</body>
</html>